Zobrazeno 1 - 10
of 9 262
pro vyhledávání: '"Mohammad, K"'
Autor:
Andales, Hillary Diane, Figueiredo, Ananda Santos, Fienberg, Casey Gordon, Mardini, Mohammad K., Frebel, Anna
We present a detailed chemical abundance and kinematic analysis of six extremely metal-poor ($-4.2 \leq$ [Fe/H] $\leq-$2.9) halo stars with very low neutron-capture abundances ([Sr/H] and [Ba/H]) based on high-resolution Magellan/MIKE spectra. Three
Externí odkaz:
http://arxiv.org/abs/2405.07856
Autor:
Karvandi, Mohammad Sina, Meghdadizanjani, Soroush, Arasteh, Sima, Monfared, Saleh Khalaj, Fallah, Mohammad K., Gorgin, Saeid, Lee, Jeong-A, van der Kouwe, Erik
Existing anti-malware software and reverse engineering toolkits struggle with stealthy sub-OS rootkits due to limitations of run-time kernel-level monitoring. A malicious kernel-level driver can bypass OS-level anti-virus mechanisms easily. Although
Externí odkaz:
http://arxiv.org/abs/2405.00298
Autor:
Ou, Xiaowei, Chiti, Anirudh, Shipp, Nora, Simon, Joshua D., Geha, Marla, Frebel, Anna, Mardini, Mohammad K., Erkal, Denis, Necib, Lina
The Hercules ultra-faint dwarf galaxy (UFD) has long been hypothesized to be tidally disrupting, yet no conclusive evidence has been found for tidal disruption owing partly to difficulties in identifying Hercules member stars. In this work, we presen
Externí odkaz:
http://arxiv.org/abs/2403.00921
We report on the discovery of the first ultra metal-poor (UMP) star 2MASS~J20500194$-$6613298 (J2050$-$6613; \mbox{[Fe/H] = $-4.05$}) selected from the Gaia BP/RP spectral catalog that belongs to the ancient Atari disk component. We obtained a high-r
Externí odkaz:
http://arxiv.org/abs/2402.07046
The Milky Way is a spiral galaxy comprising three main components: the Bulge, the Disk, and the Halo. Of particular interest is the Galactic disk, which holds a significant portion of the baryonic matter angular momentum and harbors at least two prim
Externí odkaz:
http://arxiv.org/abs/2402.07045
Autor:
Hong, Jihye, Beers, Timothy C., Lee, Young Sun, Huang, Yang, Hirai, Yutaka, Garcia, Jonathan Cabrera, Shank, Derek, Xu, Shuai, Yuan, Haibo, Mardini, Mohammad K., Catapano, Thomas, Zhao, Gang, Fan, Zhou, Zheng, Jie, Wang, Wei, Tan, Kefeng, Zhao, Jingkun, Li, Chun
Photometric stellar surveys now cover a large fraction of the sky, probe to fainter magnitudes than large-scale spectroscopic surveys, and are relatively free from the target-selection biases often associated with such studies. Photometric-metallicit
Externí odkaz:
http://arxiv.org/abs/2311.02297
Autor:
Placco, Vinicius M., Almeida-Fernandes, Felipe, Holmbeck, Erika M., Roederer, Ian U., Mardini, Mohammad K., Hayes, Christian R., Venn, Kim, Chiboucas, Kristin, Deibert, Emily, Gamen, Roberto, Heo, Jeong-Eun, Jeong, Miji, Kalari, Venu, Martioli, Eder, Xu, Siyi, Diaz, Ruben, Gomez-Jimenez, Manuel, Henderson, David, Prado, Pablo, Quiroz, Carlos, Ruiz-Carmona, Roque, Simpson, Chris, Urrutia, Cristian, McConnachie, Alan W., Pazder, John, Burley, Gregory, Ireland, Michael, Waller, Fletcher, Berg, Trystyn A. M., Robertson, J. Gordon, Hartman, Zachary, Jones, David O., Labrie, Kathleen, Perez, Gabriel, Ridgway, Susan, Thomas-Osip, Joanna
We report on the chemo-dynamical analysis of SPLUS J142445.34-254247.1, an extremely metal-poor halo star enhanced in elements formed by the rapid neutron-capture process. This star was first selected as a metal-poor candidate from its narrow-band S-
Externí odkaz:
http://arxiv.org/abs/2310.17024
Just a few years after the inception of quantum mechanics, there has been a research program using the nonclassical values of some quasiprobability distributions to delineate the nonclassical aspects of quantum phenomena. In particular, in KD (Kirkwo
Externí odkaz:
http://arxiv.org/abs/2309.09162
Publikováno v:
J. Phys. A: Math. Theor. 56, 235304 (2023)
Quantum coherence as an asymmetry relative to a translation group generated by a Hermitian operator, is a necessary resource for the quantum parameter estimation. On the other hand, the sensitivity of the parameter estimation is known to be related t
Externí odkaz:
http://arxiv.org/abs/2309.09157
Autor:
Saberi-Movahed, Farshad, Ebrahimpour, Mohammad K., Saberi-Movahed, Farid, Moshavash, Monireh, Rahmatian, Dorsa, Mohazzebi, Mahvash, Shariatzadeh, Mahdi, Eftekhari, Mahdi
Deep Metric Learning (DML) models rely on strong representations and similarity-based measures with specific loss functions. Proxy-based losses have shown great performance compared to pair-based losses in terms of convergence speed. However, proxies
Externí odkaz:
http://arxiv.org/abs/2306.13055